Combination nut lock and piston-rod lubricator



Aug. 21, 1923. 1,465,495

w. H. STONE COMBINATION NUT LOCK AND PISTON ROD LUBRICATOR Filed Sent. 4. 1920 aooooooaooooooo woooooooooooooo -nnoo0oo0oooooooo -0nooooo00ooo0o0o 000000 000000 eQeoqn 00444: q 00! can I oqnqeoc oneoa b cococooncoooooooaocu OOOOOOOOOOOOODOOOOOO 'OOOOOOO OOOOOOOOOO OOOOOQOOOOOGOOQQ O OOOQOOOOOOOOO 00000000000000 00000090000000 00000090000000 OOOOOOOOOOCJOO'IOO 00000000000000 0O ODOOOOOOGOOOODOO a OQOOOOQOOOOOOOOO 00 00000000000000 naanvoneaoocoo oooooooooooo ooooo0 00 0goo dooo INVENTOR. William H. $20726,

ATTORNEY.

Patented Aug. 21, 1923.

WILLIAMFH. strong, or KANSAS CITY, MISSOUBIL;

COMBINATION Ntr'r LOCK AND PISTON-BOD LUBRICATOR.

Application filed September 4, 1920; Serial no; 408,238.

Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Combination Nut Lock and Piston-Rod Lubricators, of which the following is a specification.

My invention relates to a combination nut lock and piston rod lubricator and while it may be employed to advantage for locking the stufiing box nuts and lubricating the piston rods of various machines it is more particularly adapted for use on air pumps such as are employed on railway locomotives for supplying the air brake system with compressed air.

The device is so constructed that'it can be readily installed or removed without taking apart any of the mechanism on which it is employed and when in use not only locks the stufiing box nuts in position and lubricates the piston rod, but also protects the latter from dust, grit and other foreign matter likely to cause undue wear and leakage of air and steam around said piston rod.

In order that the invention may be fully understood, reference will now be had to the accompanying drawing, in which:

Fig. 1 is an elevation of a portion of an air compressor, with the device in section thereon,

Fig. 2 is a plan view of the device.

Fig. 3 is an elevation of the device in closed position.

Fig. 4 is an elevation of the device in open position.

Fig 5 is an irregular fragmentarysection on line VV of Fig. 1. y

In carrying out the invention, I employ a. shell 2, made in two sections 4 and 6, connected by hinges 8 and held in closed position by a staple 10 and a hook 12. Said hook 12 is pivotally mounted upon a hasp 14 secured by suitable fastening means such as rivets 16 to the opposite side of the shell from that containing the staple 10. The.

ends of the shell 10 are cut away at-intervals as indicated at 18, to provide fingers 20, for a purpose which will hereinafter appear.

The shell sections 4 and 6 are provided with segmental screen sections 22 spaced from the interior of the shell by longitudinal spacing members at and segmental spacing members 26 secured to the interior of the shell by pins 28. The pins 28 are held in I placeby integral heads 30 and washers 32,

whichlatter are pressed over the inner ends of said pins 28 and-against the interior of the screen sections 22, thus reliably holding the same against the spacing members 24 and 26.

Dust proof lubricant chambers 86 are formed between the interior of the shell 2 and the screen segments 22 for holding grease or other heavy lubricant, adapted to saturate wicking 38 or other absorbent material held in place against the interior of a the screen sections 22 by the pins 28.

The air compressor shown in the drawing is of the usual type embodying a steam cylinder A and an air cylinder B having piston heads C and D, respectively, connected by a piston rod E. The adjacent cylinder heads F and G are united by a segmental member H and have the usual stufiing boxes I and J, equipped ith nuts K and L,

respectively.

' In practice the shell 2 is opened and placed around the piston rod E and then secured in closed position by the staple 10 and the hook 12. In placing the shell 2 in position the fingers 20 are engaged inthe recesses be-. tween the peripheral lugs on thenuts K and L and thus lock the same against unscrewing. When steam is admitted to the cylinder A to reciprocate the piston heads C and D and the rod E, the latter becomesf warm and softens the grease in the lubricant chambers 36, causing a portion of said.

grease to flow through the perforations in the screens 22 and saturate the wicking 38, which in turn lubricatesthe piston rod E and protects itand the stufling boxes I and J from undue wear. Grit, dust and .other foreign matter likely towscore or otherwise injure the piston rod E is excluded by the shell 2 and the stuffing boxesI and J The device can be readily removed when the,

grease and wicking are to be renewed.

While I have shown and described the preferred form of the invention, I reserve the right to make such changes'as properly fall within the spirit and scope of the claims; 7 Having thus described my invention, what I claim and desire to secure by Letters Pat cut, is:

1. A device of thecharacter described consisting of a vertically disposed cylindrical shell adapted to be opened for placement around a piston rod, means for securing said shell in closed position around the piston rod, a vertically-disposed cylindrical screen fixed within said shell and arranged to open and close therewith, said screen being spaced from the shell to leave a dust proof chamber for a lubricant adapted to pass through the screen and lubricate the piston rod, and means projecting inwardly cal shell made in sections, hinges connecting 1 said sections so that the shell may be opened closed position, and integral extensions at 20 l the upper and lower ends of the shell; for the purpose described.

In testimony whereof I afiix my signature, in the presence of two witnesses.

V 7 WILLIAM I-LSTONE.

Witnesses:

F. G. FISCHER, L. J. FISCHER. 

